What method involves using resistant turfgrass varieties to manage pests?

Using resistant turfgrass varieties to manage pests falls under cultural control practices. This method focuses on enhancing the growing conditions and resilience of the turfgrass itself, which can reduce the likelihood of pest infestations. By selecting varieties that have been bred for inherent resistance to specific pests or diseases, turf managers can naturally lower the pest population without relying solely on chemical or mechanical interventions.

Cultural control goes beyond just selecting resistant varieties; it also encompasses practices such as proper planting techniques, optimal irrigation, fertilization, and soil management. All these practices contribute to the overall health and vigor of the turf, making it less susceptible to pest damage.

In contrast, biological control relies on introducing natural predators or pathogens to suppress pest populations. Chemical control involves the application of pesticides, while mechanical control includes physical methods of pest management, such as mowing or trapping. These methods do not inherently strengthen the turf's resistance as cultural control does by fostering robust growth through proper variety selection and care.